Paving joint filler



Dec. 14, 1937. WARNER 2,101,883

. PAVING JOINT FILLER Filed July 9, 1930 Patented Dec.-14, 1937 PAVINGrom'r m Leroy E. Warner, Bonenm, Ohio, to The Philip Carey ManufacturingCompany, a

corporation of Ohio Application July 9, 1930, Serial No. 466,714 12Claims. (c1; 94-13 My present invention relates to pavement joints andmore particularly to an elastic filler therefor, one that willsubstantially fill the joint space irrespective of the contraction orexpansion of the adjacent structures.

An object of my invention is to provide a fill for pavement joints whichwill interlock in such a way with the pavement that a parting thereofwill be practically impossible.

A further object of my invention is to provide in combination with ayielding joint filler, a means whereby a displacement of the filler atthe joint will be practically impossible.

Another object of my invention is to provide a pavement joint fillerwhich will, under compression and extension, maintain a tight seal, atthe pavement joint, which is substantially impervious to water and othermaterials. v

My invention also provides a. filler for a pavement joint that may beutilized as a form strip in the laying of concrete and functions as anelastic expansion and as an elastic contraction joint filler tocompensate for themovement of the adjacent pavement due to temperaturechanges.

Other objects and advantages of my invention will be in part evident andin part pointed out hereinafter as the specification proceeds.

In carrying out my invention, I propose to form the side and/or the edgesurfaces with areas in different planes such as recesses or groovesofany suitable configuration in the faces of the filler material. In thepreferred embodiment of my inventibn this packing material isconstructed in accordance with the disclosure of my Patent,

No. 2,016,404, issued October 8, 1935 from application Serial Number352,117 filed April 3rd, 1929 in which the packing member is describedas formed of a composition of cellular rubber, which material has beenfound to possess the characteristics of being non-absorbent, 'yetsponge-like with elastic, waterproof and flexible qualities, that lendit to this use. As explained in said application a suitable compositionto form the packing is a rubber compound containing rubber, asphaltum,etc., formed into a sheet placed in a suitable press and cured underpressure with heattreatment. I desire to have it understood, however,that I do not limit myself to a filler material of the above character,as

any other materials affording the elastic and other qualities may beused with equal effectiveness.

For a better understanding of my invention, reference should be had totheaccompanying drawing, wherein I have shown by way of illustration andnot of limitation certain preferred adaptations thereof.

In the drawing- Fig. 1 is a fragmentary, perspective view of one 6 formof my invention,

Fig. 2 is a cross section of my joint in use, and

Figs. 3, 4 and 5 are modified forms which embody the fundamentalprinciples.

In Fig, 1, l0 designates an elastic pr formed 10 packing member which inpractice may of any predetermined. desired length and breadth. Thiselastic packing member has an intermediate strip H which is of anysuitable flexible .material,

such as a'waterproofed felt, that will tend to re- 1 inforce the body H!or to limit to some degree the flexibility of the joint. If desired, alike flexible material l6, l6,.of waterproofed felt, may be applied toeitherone or both faces of the body l0 as shown. Any suitable materialmay be used 20 for the materials l5 and I6 such as a. flexible metal orother flexible fabric sheet material, or thin sheets of wood, or afelt'either dry or saturated'with a waterproofing, etc. Formed in thesides or faces of the member ID, I show a. plu- 25 rality of depressionsll, forming areas in different planes, arranged in spaced relation. Thefunction of these depressions l l is to receive a portion of theconcrete when it is poured so as to permit the formation of atongue-like projection 30 which will serve to interlock the filler andadjacent paving l'l. v

I desire to point outwhile I prefer that the concrete and the fillerinterlock and form a seal,

under some circumstances the tongues formed 35 I In Fig. 1, I have alsoshown a central reinforcement l5 which may or may not be used dependingupon the rigidity required for the filler. If desired, the centralreinforcement l5 could be used without the surface reinforcement H5,

or, the surface reinforcementlli could be used without the centralreinforcement l5, or, only .one of the reinforcements could be used, andin some cases the filler could be made without any of thereinforcements, l5 or l6.

In Fig. 3 of the drawing, instead of the straight movement of the fillervertically, the depressions will also havea tendency to prevent anysidewise movement of the filler between the pavement sections.

. pendent air cells It surrounded by an elastic ma- In Fig. 4, insteadof continuous depressions such as those designated by the numerals H and-l! in Figs. 1 and. 3, respectively, I show staggered diamond-shapedsurface depressions l3 that, by their arrangement, form overlappingprojections upon the concrete sections which in effect produce the sameresult as that sought in Fig. 3. Instead of the diamond-shapeddepressions as illustrated in Fig. 3, I may provide as shown in Fig. 4overlapping rectangular portions It or any other configuration whichwill accompush the same result.

When the sides of the filler are faced with the flexible sheet material,l8, it, particularly if the sheet material is a felt saturated with abituminous containing saturant such as asphalt, the tendency is for thesame to bond with the adjacent pavement and thereby form a watersealbetween the pavement and the filler and also protect the rubber bodyagainst any'deteriorating elements such as oils, water, air, etc.

The side surfacing sheet, l6, It also serves to protect the rubber bodyfrom destructively deteriorating when the fillers are laying out exposedto the elements before being placed in the pavement.

In the preferred form of my joint I use an elastic'body I! having apluralityof enclosed indeterial I! and provided with a surface film orlayer 2! sealing the cellular body against entrance of foreign material.This film or layer. llmay be formed of a portion of the elastic bodymaterial ll without the cells It thereby forming-a film or layerintegral with the. cellular portion of the body II, or it maybe aseparate film or. layer. In Fig. 1,1 have shown the body Ill formed froma cellu lar rubber material having the film i lll integralwiththecellular portion of the In'l'ig. l for clearness I have shown aportion of the film "removed; On the surface of one or-more edges of thefiller, I may also provide areas in the surface arranged in differentplanes and of any desired configuration for interlockingwith anyadjacent portion of theconstruction in -which the filler is used or forpurpose of fidentificationof the filler, for which latter purpose thesize of hind of filler could be marked-in the surface of any .portion ofthe filler.

While in the drawing I have shown a filler using a cellular bodymaterial in which there are an infinite'number of relatively small air.cells surrounded by an elastic membrane enclosing the cells, which isthe preferred because of the nonporous or water-proof qualities thatflow from such a structure without affecting the elastic qualities andwhich enables me to use a cellular filler material without the film 2.if desired, I

would also have it understood that a porous body could be used, thatis,a body in which there is an infinite number-of cells interconnecting,as in the well known and common rubber bath sponge.

Using this material, however, for the filler by reason of itsporouscharacter, I prefer to provide the film 2|! which isv non-porousand serves .to enclose the. porous body, thereby keeping out water,moisture, etc. If, however, it ;is desired,

the so -called porous type of filler material could be used and afterthe filler was installed between the adjacent'structural members IT, aseal 2| could be applied over the surface; such for instance, as anasphalt material or other suitable material, or, even an elasticcompound could be applied.

I claim: I

1. A joint filler for pavements consisting of a rubber body portionprovided with a multiplicity of independent cells therein, each of saidcells enclosed and separated from adjacent cells by the rubber formingsaid body portion, said body portion having a rubber surface of texturedifferent from the texture of the body portion.

2. A joint filler for pavements consisting of a rubber body portionprovided with a multiplicity 3. A joint filler for pavements consistingof a a rubber body portion of cured rubber compound provided with amultiplicity of independent cells therein, each of said cells enclosedand separated from adjacent cells by the rubber forming said bodyportion, portions of a surface of the body arranged in difi'erentplanes, and means adapted to limit the flexibility of said body portion,

4. A joint filler for pavements consisting of a rubber body portionprovided with a multiplicity of independent cells therein, each of saidcells enclosed and separated from adlacent cells by the rubber formingsaid body portion, portions of a surface of thebody arranged indifferent planes, and means sealing a surface thereof.

5. A joint filler for pavements consisting of a rubber body portionprovided with a multiplicity of independent cells therein, each of saidcells enclosed; and separated from adjacent cells by the rubber formingsaid body portion, and provided 1 with a surface having areas indifferent planes.

6. A construction material consisting of a body portion of cured rubbercompound having a multiplicity, of cells, enclosed and separated fromdifferent from the texture of said body portion.

5 )7. A construction material consisting of a rubher body portion.having'-'a =multiplicity of cells, enclosed-and separated. from eachother by the rubber-of said body portion, and provided with a rubbersurface of texture different from the tax-- ture of said body portion"and integral with said body portion.

8. A joint filler for rubber body portion provided with a multiplicityof cells enclosed and se'paratedfrom each other by the rubber formingthe body portion, said Joint filler provided with a non-cellularcovering of waterproof material.

9. In a construction adjacent members, a space between said members, afiller for said space consisting of a rubber body portion containing amultiplicity of cells enclosed and separated from each other bythe'rubber in said body portion, and

pavements consisting of a Q having a rubber surface of different texturefrom the body portion.

10. In a pavement adjacent paving members,

a space between said members, a filler in said space terminating belowthe surface of said members and means consisting of a body of curedrubber compound sealing the space above the filler 2,1o1,esa l ,3

between said members to prevent passage of material into said space orinto said filler.

11. A joint filler composed of a resilient elasticrubber body providedwith a multiplicity of independent cells and having a means embeddedtherein to limit theflexibility of the body.

12. A joint filler composed of a resilient elastic rubber body providedwith a multiplicity of independent cells, means embedded within the bodyto limit its flexibility, and facing material applied to one surface ofthe body. v

- p LEROY E. WARNER.

